Learn about the multilateral rectangle padding for Windows programming Day4

#include <windows.h>#include<math.h>LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM WPARAM, LPARAM LPARAM);#defineR 200#definePI 3.1415926intWINAPI WinMain (hinstance hinstance, hinstance hprevinstance, LPSTR lpCmdLine,intnShowCmd) {    //declaring global Data: class name    StaticTCHAR szclassname[] = TEXT ("mywindows");    HWND hwnd;    MSG msg; //Register window classWndclass wndclass; Wndclass.hinstance=hinstance; Wndclass.lpszclassname=Szclassname; Wndclass.cbclsextra=0; Wndclass.cbwndextra=0; Wndclass.lpfnwndproc=WndProc; Wndclass.lpszmenuname=NULL; Wndclass.hicon=LoadIcon (NULL, idi_application); Wndclass.hcursor=loadcursor (NULL, Idc_arrow); Wndclass.hbrbackground=(Hbrush) getstockobject (White_brush); Wndclass.style=Cs_hredraw; if(! RegisterClass (&wndclass)) {MessageBox (NULL, TEXT ("This program must run in Windows nt!"), Szclassname, Mb_iconerror); return 0; } hwnd=CreateWindow (Szclassname, TEXT ("Myfirstpractice"), Ws_overlappedwindow, Cw_usedefault, Cw_usedefault, Cw_usedefault, Cw_usedefault    , NULL, NULL, HINSTANCE, NULL);    ShowWindow (hwnd, NSHOWCMD);    UpdateWindow (HWND);  while(GetMessage (&msg, NULL,0,0) {translatemessage (&msg); DispatchMessage (&msg); }    returnMsg.wparam;}    LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM WPARAM, LPARAM LPARAM) {HDC hdc;    Paintstruct PS;    Rect rect; StaticHbrush Hbrush, hOldBrush;//draw a polygon that fills the number of vertices that need to be polygonPoint apt1[4] = { -, $, $, -, -, $, $, - };//draw a closed polygon polyline the number of vertices required +1 Note: Closed images drawn with lines do not have fill capacity//Point apt2[5] = {n , A, a, a, a, a, a, a, a.Point apt2[5]; intCxclient, Cyclient;//the central position of the stars    Switch(message) { CaseWM_PAINT:HDC= BeginPaint (hwnd, &PS); GetClientRect (hwnd,&rect); Cxclient= Rect.right/2; Cyclient= Rect.bottom/2; //get five vertices//Top left Vertexapt2[0].x = Cxclient-(int) (R*cos (PI/5)); apt2[0].Y = Cyclient-(int) (R*sin (PI/5)); //Top right vertexapt2[1].x = Cxclient + (int) (R*cos (PI/5)); apt2[1].Y = Cyclient-(int) (R*sin (PI/5)); //Lower left Vertexapt2[2].x = Cxclient-(int) (R*cos (PI/5)); apt2[2].Y = Cyclient + (int) (R*sin (PI/5)); //Top Vertexapt2[3].x =cxclient; apt2[3].Y = cyclient-R; //Lower right vertexapt2[4].x = Cxclient + (int) (R*cos (PI/5)); apt2[4].Y = Cyclient + (int) (R*sin (PI/5)); Hbrush= CreateSolidBrush (RGB (255,255,0)); hOldBrush=SelectObject (hdc, hbrush);//Setpolyfillmode (hdc, ALTERNATE); //Alternating fillSetpolyfillmode (hdc, winding);//Spiral Fill, fills all the shapes that can be completed in one stroke//Polygon (hdc, APT2,5);//Polyline (HDC, APT2, 5);// SelectObject (hdc, hOldBrush);        DeleteObject (hOldBrush); EndPaint (hwnd,&PS);  Break;  CaseWm_destroy:postquitmessage (0); return 0; }    returnDefWindowProc (hwnd, message, WParam, LParam);}

#include <windows.h> #include <math.h>
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM WPARAM, LPARAM LPARAM);
#define R 200#define PI 3.1415926
int WINAPI WinMain (hinstance hinstance, hinstance hprevinstance, LPSTR lpcmdline, int nshowcmd) {//DECLARE global Data: Class name static TCHAR s Zclassname[] = TEXT ("MyWindows"); HWND hwnd; MSG msg;
Register window class WNDCLASS wndclass;
Wndclass.hinstance = Hinstance;wndclass.lpszclassname = Szclassname;wndclass.cbclsextra = 0;wndclass.cbWndExtra = 0; Wndclass.lpfnwndproc = Wndproc;wndclass.lpszmenuname = Null;wndclass.hicon = LoadIcon (NULL, IDI_APPLICATION); Wndclass.hcursor = LoadCursor (NULL, idc_arrow); wndclass.hbrbackground = (Hbrush) getstockobject (WHITE_BRUSH); Wndclass.style = Cs_hredraw;
if (! RegisterClass (&wndclass)) {MessageBox (NULL, TEXT ("This program must run in Windows nt!"), Szclassname, Mb_iconerror) ; return 0;}
hwnd = CreateWindow (Szclassname,text ("Myfirstpractice"), Ws_overlappedwindow,cw_usedefault,cw_usedefault,cw_ Usedefault,cw_usedefault,null,null,hinstance,null);
ShowWindow (hwnd, NSHOWCMD); UpdateWindow (HWND);
while (GetMessage (&msg, NULL, 0, 0)) {translatemessage (&msg);D ispatchmessage (&msg);}
return Msg.wparam;}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM WPARAM, LPARAM LPARAM) {HDC hdc; Paintstruct PS; Rect rect;
Static Hbrush Hbrush, holdbrush;//draws a polygon that can be populated with the number of vertices required polygonpoint apt1[4] = {100, 200, 200, 100, 300, 200,200, 300};//drawn The number of vertices required for a closed polygon polyline +1 Note: Closed images drawn with lines do not have fill capacity//point apt2[5] = {400, 200, 500, 100, 600, 200, 500, 300, 400, 200}; Point Apt2[5];int cxclient, cyclient;//the center of the stars
Switch (message) {Case WM_PAINT:HDC = BeginPaint (hwnd, &AMP;PS); GetClientRect (hwnd, &rect);
Cxclient = Rect.right/2;cyclient = RECT.BOTTOM/2;
Get five vertices//top left vertices apt2[0].x = cxclient-(int) (R*cos (PI/5)), apt2[0].y = cyclient-(int) (R*sin (PI/5));
Top right Vertex apt2[1].x = cxclient + (int) (R*cos (PI/5)); apt2[1].y = cyclient-(int) (R*sin (PI/5));
Lower left vertex apt2[2].x = cxclient-(int) (R*cos (PI/5)); apt2[2].y = cyclient + (int) (R*sin (PI/5));
Upper Vertex apt2[3].x = Cxclient;apt2[3].y = Cyclient-r;
Lower right Vertex apt2[4].x = cxclient + (int) (R*cos (PI/5)); apt2[4].y = cyclient + (int) (R*sin (PI/5));
Hbrush = CreateSolidBrush (RGB (255,255,0)); hOldBrush = SelectObject (hdc, hbrush);
Setpolyfillmode (hdc, ALTERNATE);//Alternating fill setpolyfillmode (hdc, winding);//spiral fill, fill all the graphics that can be completed//Polygon (HDC, APT2, 5) ;//Polyline (HDC, APT2, 5);//SelectObject (hdc, hOldBrush); DeleteObject (hOldBrush); EndPaint (hwnd, &AMP;PS); Break;case wm_destroy:postquitmessage (0); return 0;}

Return DefWindowProc (HWND, message, WParam, LParam);}

Learn about the multilateral rectangle padding for Windows programming Day4